Home / 1,294,720.40-1,944,121.80-762,647.60

Finding the Fourth Proportional to 1,294,720.40, 1,944,121.80 and 762,647.60

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Solution

The fourth proportional to 1,294,720.40, 1,944,121.80 and 762,647.60 is: 1,145,173.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294,720.40 : 1,944,121.80 = 762,647.60 : x
  2. Step 2: Convert to fraction form
    1,294,720.40/1,944,121.80 = 762,647.60/x
  3. Step 3: Cross multiply
    1,294,720.40x = 1,944,121.80 × 762,647.60
  4. Step 4: Simplify right side
    1,294,720.40x = 1,482,679,824,877.68
  5. Step 5: Solve for x
    x = 1,482,679,824,877.68/1,294,720.40
  6. Step 6: Final answer
    x = 1,145,173.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.